 This study provides a comprehensive dataset of PFAS contaminants in Kentucky's drinking water system. It uses ArcGIS online to create five maps that show potential hotspots of contamination and can help decision makers identify vulnerable drinking water systems. Additionally, the authors have made the dataset available on FigShare, which adheres to the fair principles of findability, accessibility, interoperability, and reusability. This makes the dataset easily accessible and reusable for future research. This article was authored by Swater Oja, Pete Travis Thompson, Christian D. Powell, and others.